To estimate the average annual growth rate for 1950, we need to find the value of y when x is equal to 50 (since 1950 is 50 years after 1900).
y = -0.0000087(50^3) + 0.00262(50^2) - 0.174(50) + 8.172
Calculating this equation will give us the estimated average annual growth rate for 1950.
Use the model below to estimate the average annual growth rate of a certain country's population for 1950, 1988, and 2010, where x is the number of years after 1900.
y=-0.0000087x^3 + 0.00262x^2 - 0.174x + 8.172
The estimated average annual growth rate of the country's population for 1950 is ____
1 answer